Rubio reaches for water: Marco Rubio took some ribbing after a short water break during the GOP response to the State of the Union address. Rubio reaches millions later, when he joins the Twitterfest with a tweet of his own. Updated: 11:30 a.m.

Rubio, a Cuban-American who has reached out to the Latino community after it went strongly for Obama in the November elections, has been mentioned as a presidential candidate in 2016. The chance to give the Republican response to Obama was considered as a way to increase his visibility.

Rubio appeared to wipe away sweat during his rebuttal from the Speaker's conference room in the U.S. Capitol shortly after Obama's address. At one point, Rubio reached out with his left hand and took a quick swig of water from a small Poland Spring water bottle.